Explain about the partitioning, shuffle and sort phase in MapReduce?


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More MapReduce Interview Questions

What is the utility of using Writable Comparable Custom Class in Map Reduce code?

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Define Writable data types in Hadoop MapReduce?

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Why MapReduce uses the key-value pair to process the data?

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what is JobTracker in Hadoop? What are the actions followed by Hadoop?

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Is it possible to search for files using wildcards?

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What does conf.setmapper class do?

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Explain what combiners are and when you should use a combiner in a mapreduce job?

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What is RecordReader in a Map Reduce?

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Why is Apache Spark faster than Hadoop MapReduce?

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Compare Pig vs Hive vs Hadoop MapReduce?

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What do you understand by the term Straggler ?

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What is a Distributed Cache in Hadoop?

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